原料及缩聚条件对中间相沥青性质的影响  

EFFECT OF RAW MATERIAL AND CONDENSATION POLYMORIZATION CONDITION ON PROPERTIES OF MESOPHASE PITCH

作　　者：孟祥坤[1] 郑嘉明[1] 王成扬[1] 阮湘泉[1] 郭崇涛[1] 

机构地区：[1]唐山工程技术学院,天津大学

出　　处：《炭素》1995年第3期19-23,共5页Carbon

摘　　要：本研究用刮膜蒸发翼对制备中间相沥青的原料（软化点为６０℃的石油沥青）进行了分离，并分别以未分离的沥青及分离出的重质沥青为原料在不同的条件下调制成中间相沥青。探讨了原料分子量分布及缩聚过程中温度、Ｎ２流量、缩聚时间对中间相沥青族组成分布、软化点和可纺性等性质的影响。Abstract:The raw material which was used to prepare mesophas pitch(Petroleum pitch,softening point is at 60℃ ) was separated by wiped film evaporator.The mesophas pitch was prepared from unseparated pitch and separated heavy pitch as raw material at various conditions.Effect of the raw material molecular weight distribution,temperature,N2 flow quantity,condensation polymorization time under on composition,distribution,softening point and spinnability of mesophase pitch group was approached.

关 键 词：刮膜蒸发 中间相沥青 原料 缩聚 沥青 

分 类 号：TE626.86[石油与天然气工程—油气加工工程]